15x1 - The CSI Effect

September 28, 2014

Finlay must deal with a bomb planted in her car. Russell gets a call from someone claiming to be the Gig Harbor killer.

15x2 - Buzz Kill

October 5, 2014

The CSI team investigates a robbery and fatal shooting at a medical marijuana shop.

15x3 - Bad Blood

October 12, 2014

Sara and Greg are quarantined after responding to a crime scene that’s contaminated with a deadly pathogen.

15x4 - The Book of Shadows

October 19, 2014

A chemistry teacher's science experiment goes horribly wrong.

15x5 - Girls Gone Wilder

November 9, 2014

Morgan, Sara and Fin try to relax at a forensics conference when a mass shooting occurs on site.

15x6 - The Twin Paradox

November 16, 2014

Frustration mounts for the CSI team as another victim surfaces who is linked to the Gig Harbor Killer.

15x7 - Road to Recovery

November 23, 2014

The CSI team take a look into the death of a woman who has been drinking and taking drugs in a pool at a rehab facility.

15x8 - Rubbery Homicide

November 30, 2014

The CSI team find themselves taking a look into the kinky world of “rubber dolls” as they investigate the murder of a man stabbed in an alley.

15x9 - Let's Make a Deal

December 7, 2014

The CSI team investigates a murder at Clark County jail after an inmate stumbles upon a body while running away from officers.

15x10 - Dead Rails

December 14, 2014

The CSI team investigates the bizarre death of a man who was killed not once, but twice.

15x11 - Angle of Attack

December 21, 2014

The CSIs' investigation of the victim of an apparent hit and run leads them into the world of aeronautics.

15x12 - Dead Woods

December 28, 2014

The CSI team reopens a 10-year-old murder/suicide case when the sole survivor claims her accused father was innocent.

15x14 - Merchants of Menace

January 25, 2015

The CSI team investigates a homicide at a convention for people who collect macabre murder memorabilia.

15x15 - Hero to Zero

January 25, 2015

The CSI team investigates the murder of a young victim dressed as a superhero.

15x16 - The Last Ride

January 27, 2015

The CSI team investigates a death involving a vintage Rolls Royce and a chrome-covered victim.

15x17 - Under My Skin

February 15, 2015

The CSI team investigates a murder with ties to two teenaged kidnapped girls.

15x18 - The End Game

February 15, 2015

The CSI unit faces the final showdown with the Gig Harbor killer whose motives are finally revealed. Meanwhile, Nick Stokes makes a decision that will affect the entire team moving forward.

15x19 - Episode 19

February 22, 2015